546 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 91 
SPECIMEN COLLECTED 
1 ad. o, Isla Temblador, Upper Orinoco, Venezuela, February 25, 1931. 
The single specimen of the rice grackle obtained by the expedition 
is in somewhat abraded plumage and is the smallest adult of its sex 
seen (out of a comparative series of a dozen skins). Its dimensions 
are as follows: Wing 180, tail 137, culmen from base 32.5mm. The 
bill is particularly small, the measurements of the culmen in the other 
males seen ranging from 34—39.5 mm. 
MOLOTHRUS BONARIENSIS VENEZUELENSIS Stone: Venezuelan Shiny Cowbird 
Molothrus venezuelensis Stone, Auk, vol. 8, 1891, p. 347 (Venezuela=San Esteban, 
Carabobo). 
SPECIMEN COLLECTED 
1 “ad.” o&', Ciudad Bolivar, Venezuela, June 8, 1931. 
The single specimen obtained was said by the collector to have had 
the gonads enlarged. It is, however, a young male in postjuvenal 
molt, the head, neck, breast, and upper back being covered with 
purplish adult feathers, while the rest of the bird stil! has the old, 
juvenal, dark-brown plumage, with merely a trace, here and there, 
above and below, of new bluish adult body feathers. The color of 
the juvenal feathers is very dark, much darker and without any of 
the olivaceous color seen in a juvenal male from Turmero, Aragua, 
Venezuela. This suggests that in this race, as in the nominate form, 
a considerable degree of dichromatism exists in the young (and 
possibly in the female adults). 
HOLOQUISCALUS LUGUBRIS LUGUBRIS (Swainson): Swainson’s Grackle 
Quiscalus lugubris Swainson, Animals in menageries, 1837, p. 299 (‘Brazil,” 
errore= British Guiana according to Berlepsch and Hartert, Nov. Zool., 
vol. 9, 1902, p. 32). 
SPECIMENS COLLECTED 
lad. 0,2 im. o',1 ad. 2, Ciudad Bolivar, Venezuela, December 12, 1929, and 
June 8-9, 1931. 
The immature males resemble the adult female, but are paler, more 
grayish below, and slightly paler, more brownish above on the head 
and upper back. They are both in molt in the wings and tail. 
ICTERUS CHRYSOCEPHALUS (Linnaeus): Morichke Oriole 
Oriolus chrysocephaius Linnarus, Systema naturae, ed. 12, vol. 1, 1766, p. 164 
(based on “Le Carouge 4 teste jaune d’Amérique’” Brisson=Cayenne, 
Berlepsch and Hartert, Nov. Zool., vol. 9, 1902, p. 31). 
SPECIMENS COLLECTED 
1 0 ad., Santa Isabel, Rio Negro, Amazonas, Brazil, October 16, 1930. 
1 2 ad., Chapazon, Brazo Casiquiare, Venezuela, January 31, 1931. 
These specimens agree with others from British Guiana, Brazil, 
and Colombia (“Bogota’’). The male has a longer wing, but shorter 
